Ringer kunst: funf und Achtzig Stücke ("The Art of Wrestling: Eighty-Five Devices") is a German wrestling manual written in 1537 by Fabian von Auerswald. It was illustrated in the workshop of noted artist Lucas Cranach and printed in Wittemberg by Hans Lufft in 1539. One of the earliest printed treatises on wrestling, the book includes lucid descriptions and detailed illustrations of all of its 85 devices.